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20754074 = 211943367
BaseRepresentation
bin100111100101…
…0111010011010
31110001102020102
41033022322122
520303112244
62020455402
7341256335
oct117127232
943042212
1020754074
1110795930
126b4a562
1343b8723
142a8361c
151c4e54e
hex13cae9a

20754074 has 8 divisors (see below), whose sum is σ = 33961248. Its totient is φ = 9433660.

The previous prime is 20754047. The next prime is 20754089. The reversal of 20754074 is 47045702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471662 + ... + 471705.

It is an arithmetic number, because the mean of its divisors is an integer number (4245156).

Almost surely, 220754074 is an apocalyptic number.

20754074 is a deficient number, since it is larger than the sum of its proper divisors (13207174).

20754074 is a wasteful number, since it uses less digits than its factorization.

20754074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943380.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 20754074 is about 4555.6639472200. The cubic root of 20754074 is about 274.8112158862.

Adding to 20754074 its reverse (47045702), we get a palindrome (67799776).

The spelling of 20754074 in words is "twenty million, seven hundred fifty-four thousand, seventy-four".

Divisors: 1 2 11 22 943367 1886734 10377037 20754074